AMKOR TECHNOLOGY, INC.·4

Apr 2, 6:51 PM ET

Carolin Roger Anthony 4

4 · AMKOR TECHNOLOGY, INC. · Filed Apr 2, 2026

Research Summary

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Amkor (AMKR) Director Carolin Roger Anthony Receives 33.881 RSU Awards

What Happened
Carolin Roger Anthony, a director of Amkor Technology, received two awards of dividend-equivalent units (DEUs) that convert into additional restricted stock units (RSUs). The awards totaled 15.725 and 18.156 DEUs (33.881 total) on March 31, 2026, recorded as derivative acquisitions at $0.00 per unit (no cash exchanged).

Key Details

  • Transaction date: March 31, 2026; Form 4 filed April 2, 2026 (filing appears timely).
  • Units received: 15.725 DEUs (related to RSUs granted May 16, 2023) and 18.156 DEUs (related to RSUs granted May 15, 2025); total = 33.881 DEUs.
  • Price per unit: $0.00 (DEUs are accrued additional RSUs, not cash purchases).
  • Shares owned after transaction: not specified in this Form 4.
  • Footnotes: F1 and F2 state each DEU represents an additional RSU subject to the same vesting and terms as the original RSUs.
  • Transaction type code: A = Award/Grant (derivative).

Context
DEUs are dividend equivalents accrued on existing, time-vested RSUs and simply increase the number of RSUs subject to the same vesting rules — they are not open-market purchases or sales. Such awards are routine compensation-related events and do not by themselves signal a buy or sell decision by the insider.

Insider Transaction Report

Form 4
Period: 2026-03-31
Transactions
  • Award

    Restricted Stock Units

    [F1]
    2026-03-31+15.7258,895.788 total
    Common Stock (15.725 underlying)
  • Award

    Restricted Stock Units

    [F2]
    2026-03-31+18.1569,893.057 total
    Common Stock (18.156 underlying)
Footnotes (2)
  • [F1]Represents dividend equivalent units ("DEUs") accrued upon the payment of a dividend on March 31, 2026 with respect to time-vested restricted stock units ("RSUs") of Amkor Technology, Inc. (the "Issuer") granted to the Reporting Person on May 16, 2023. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued.
  • [F2]Represents DEUs accrued upon the payment of a dividend on March 31, 2026 with respect to RSUs of the Issuer granted to the Reporting Person on May 15, 2025. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued.
Signature
/s/ Mark N. Rogers, Attorney-in-Fact for Roger A. Carolin|2026-04-02

Documents

1 file
  • 4
    wk-form4_1775170257.xmlPrimary

    FORM 4